This is what i wrote in my notebook: (for AgNO3)
<span>Health Hazards Acute and Chronic: ACUTE:
INHALATION - MAY CAUSE SEVERE
IRRITATION TO MUCOUS MEMBRANES.
SKIN - MAY CAUSE SEVERE IRRITATION.
EYE - MAY CAUSE SEVERE IRRITATION.
CHRONIC: INHALATION, SKIN &
INGESTION - MAY CAUSE ARSYRIA.
Explanation of Carcinogenicity:THIS COMPOUND CONTAINS NO INGREDIENTS AT
CONCENTRATIONS OF 0.1% OR GREATER THAT ARE CARCINOGENS OR SUSPECT
CARCINOGENS.
</span><em><u>AgNO3 + K2CrO4 = Ag2CrO4 + KNO3</u></em>
The oxidation state of the atoms of any molecule in the element state equals zero. H2 is is the element state, therefore the oxidation state of the whole molecule equals zero and the oxidation states of the atoms also equals zero. Answer letter D is the correct answer.
Magnesium has an oxidation state = zero before it undergoes the reaction and is oxidized. The oxidations state of the magnesium in Mg(OH)2 is +2.
I think it might be D or B
And my other two might be A or C
We live in the Milky Way Galaxy